The answer would be C.mountains
Answer:
hox genes are a subset of regulatory genes that encode transcription factors and they are important for embryonic development. they are activated by a cascade of regulatory genes and the proteins encoded by the early genes regulate expressions of later genes
Explanation:
The living factors in an ecosystem are called the biotic factors.
If u mean 5+1 x 10= 15
5 1 x 10= 50